64906040

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1889}}^1$

素因数の和:2759

約数の個数: 32

約数和(自身を含む): 146286000

約数和(自身を除く): 81379960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 1889, 3436, 3778, 4295, 6872, 7556, 8590, 9445, 15112, 17180, 18890, 34360, 37780, 75560, 1622651, 3245302, 6490604, 8113255, 12981208, 16226510, 32453020, 64906040]

約数ペア:

[(1, 64906040), (2, 32453020), (4, 16226510), (5, 12981208), (8, 8113255), (10, 6490604), (20, 3245302), (40, 1622651), (859, 75560), (1718, 37780), (1889, 34360), (3436, 18890), (3778, 17180), (4295, 15112), (6872, 9445), (7556, 8590)]